java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/KojakBplInline.xml -s ../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-b2fde6a [2018-09-28 11:46:53,626 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-28 11:46:53,628 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-28 11:46:53,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-28 11:46:53,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-28 11:46:53,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-28 11:46:53,646 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-28 11:46:53,647 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-28 11:46:53,649 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-28 11:46:53,650 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-28 11:46:53,651 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-28 11:46:53,651 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-28 11:46:53,652 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-28 11:46:53,653 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-28 11:46:53,655 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-28 11:46:53,655 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-28 11:46:53,656 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-28 11:46:53,658 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-28 11:46:53,660 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-28 11:46:53,662 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-28 11:46:53,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-28 11:46:53,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-28 11:46:53,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-28 11:46:53,668 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-28 11:46:53,668 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-28 11:46:53,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-28 11:46:53,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-28 11:46:53,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-28 11:46:53,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-28 11:46:53,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-28 11:46:53,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-28 11:46:53,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-28 11:46:53,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-28 11:46:53,675 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-28 11:46:53,676 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-28 11:46:53,676 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-28 11:46:53,677 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/pu-bench/svcomp-Reach-32bit-Kojak_Default_PUPT.epf [2018-09-28 11:46:53,692 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-28 11:46:53,693 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-28 11:46:53,694 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-28 11:46:53,694 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-28 11:46:53,694 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-28 11:46:53,695 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-28 11:46:53,695 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-28 11:46:53,695 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-28 11:46:53,695 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-28 11:46:53,696 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-28 11:46:53,696 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-28 11:46:53,696 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-28 11:46:53,696 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-28 11:46:53,696 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-28 11:46:53,697 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-28 11:46:53,697 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-28 11:46:53,697 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-28 11:46:53,697 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-09-28 11:46:53,697 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-09-28 11:46:53,698 INFO L133 SettingsManager]: * Use predicate trie based predicate unification=true [2018-09-28 11:46:53,698 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-28 11:46:53,698 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-28 11:46:53,698 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:46:53,698 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-28 11:46:53,699 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-28 11:46:53,699 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-28 11:46:53,699 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-09-28 11:46:53,699 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-28 11:46:53,699 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-28 11:46:53,700 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-28 11:46:53,743 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-28 11:46:53,755 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-28 11:46:53,759 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-28 11:46:53,761 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-28 11:46:53,762 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-28 11:46:53,763 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2018-09-28 11:46:53,763 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2018-09-28 11:46:53,811 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-28 11:46:53,814 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-28 11:46:53,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-28 11:46:53,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-28 11:46:53,815 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-28 11:46:53,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,851 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,855 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-28 11:46:53,855 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-28 11:46:53,856 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-28 11:46:53,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-28 11:46:53,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-28 11:46:53,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-28 11:46:53,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-28 11:46:53,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... [2018-09-28 11:46:53,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-28 11:46:53,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-28 11:46:53,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-28 11:46:53,882 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-28 11:46:53,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 28.09 11:46:53" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-09-28 11:46:53,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-28 11:46:53,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-28 11:46:53,960 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-28 11:46:54,461 INFO L350 CfgBuilder]: Using library mode [2018-09-28 11:46:54,462 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:46:54 BoogieIcfgContainer [2018-09-28 11:46:54,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-28 11:46:54,467 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-09-28 11:46:54,467 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-09-28 11:46:54,493 INFO L276 PluginConnector]: CodeCheck initialized [2018-09-28 11:46:54,493 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.09 11:46:54" (1/1) ... [2018-09-28 11:46:54,513 INFO L99 BPredicateUnifier]: Initialized predicate-trie based predicate unifier [2018-09-28 11:46:54,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:54,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2018-09-28 11:46:54,548 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-09-28 11:46:54,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-28 11:46:54,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:54,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:54,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:54,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:54,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 7 states and 9 transitions. [2018-09-28 11:46:54,917 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 9 transitions. [2018-09-28 11:46:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-28 11:46:54,918 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:55,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 8 states and 14 transitions. [2018-09-28 11:46:55,870 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 14 transitions. [2018-09-28 11:46:55,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-09-28 11:46:55,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:55,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:55,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:56,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 9 states and 16 transitions. [2018-09-28 11:46:56,717 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 16 transitions. [2018-09-28 11:46:56,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-28 11:46:56,718 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:57,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 10 states and 18 transitions. [2018-09-28 11:46:57,582 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 18 transitions. [2018-09-28 11:46:57,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-09-28 11:46:57,583 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:57,731 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:58,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:58,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 11 states and 20 transitions. [2018-09-28 11:46:58,432 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 20 transitions. [2018-09-28 11:46:58,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-09-28 11:46:58,433 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:58,596 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:46:59,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:46:59,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 12 states and 22 transitions. [2018-09-28 11:46:59,608 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 22 transitions. [2018-09-28 11:46:59,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-28 11:46:59,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:46:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:46:59,784 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:01,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 13 states and 24 transitions. [2018-09-28 11:47:01,366 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 24 transitions. [2018-09-28 11:47:01,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-28 11:47:01,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:01,537 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:02,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 14 states and 26 transitions. [2018-09-28 11:47:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 26 transitions. [2018-09-28 11:47:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-28 11:47:02,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:03,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:03,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 15 states and 28 transitions. [2018-09-28 11:47:03,452 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 28 transitions. [2018-09-28 11:47:03,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-28 11:47:03,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:03,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:03,681 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:04,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 16 states and 30 transitions. [2018-09-28 11:47:04,512 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 30 transitions. [2018-09-28 11:47:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-09-28 11:47:04,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:05,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:05,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 17 states and 32 transitions. [2018-09-28 11:47:05,551 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 32 transitions. [2018-09-28 11:47:05,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-09-28 11:47:05,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:07,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:07,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 18 states and 34 transitions. [2018-09-28 11:47:07,030 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 34 transitions. [2018-09-28 11:47:07,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-28 11:47:07,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:07,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:07,629 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 19 states and 36 transitions. [2018-09-28 11:47:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 36 transitions. [2018-09-28 11:47:08,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-28 11:47:08,544 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:09,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 20 states and 38 transitions. [2018-09-28 11:47:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 38 transitions. [2018-09-28 11:47:09,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-28 11:47:09,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:10,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:10,871 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:12,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:12,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 21 states and 40 transitions. [2018-09-28 11:47:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 40 transitions. [2018-09-28 11:47:12,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-28 11:47:12,019 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:12,292 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:13,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:13,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 22 states and 42 transitions. [2018-09-28 11:47:13,542 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 42 transitions. [2018-09-28 11:47:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-28 11:47:13,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:13,985 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:15,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:15,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 23 states and 44 transitions. [2018-09-28 11:47:15,272 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 44 transitions. [2018-09-28 11:47:15,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-28 11:47:15,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:16,303 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:17,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:17,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 24 states and 46 transitions. [2018-09-28 11:47:17,899 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 46 transitions. [2018-09-28 11:47:17,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-28 11:47:17,900 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:17,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:18,198 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:19,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:19,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 25 states and 48 transitions. [2018-09-28 11:47:19,808 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 48 transitions. [2018-09-28 11:47:19,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-09-28 11:47:19,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:19,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:21,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 26 states and 50 transitions. [2018-09-28 11:47:21,966 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 50 transitions. [2018-09-28 11:47:21,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-09-28 11:47:21,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:21,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:22,446 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:24,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:24,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 27 states and 52 transitions. [2018-09-28 11:47:24,493 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 52 transitions. [2018-09-28 11:47:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-09-28 11:47:24,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:27,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:27,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 28 states and 54 transitions. [2018-09-28 11:47:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 54 transitions. [2018-09-28 11:47:27,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-09-28 11:47:27,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:29,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:29,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 29 states and 56 transitions. [2018-09-28 11:47:29,942 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 56 transitions. [2018-09-28 11:47:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-28 11:47:29,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:32,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:32,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 30 states and 58 transitions. [2018-09-28 11:47:32,975 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 58 transitions. [2018-09-28 11:47:32,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-28 11:47:32,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:33,493 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:36,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:36,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 31 states and 60 transitions. [2018-09-28 11:47:36,264 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 60 transitions. [2018-09-28 11:47:36,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-28 11:47:36,265 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 32 states and 62 transitions. [2018-09-28 11:47:39,837 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 62 transitions. [2018-09-28 11:47:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-28 11:47:39,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:40,416 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:43,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:43,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 33 states and 64 transitions. [2018-09-28 11:47:43,624 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 64 transitions. [2018-09-28 11:47:43,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-28 11:47:43,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:44,673 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:48,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:48,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 34 states and 66 transitions. [2018-09-28 11:47:48,306 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 66 transitions. [2018-09-28 11:47:48,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-28 11:47:48,307 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:49,197 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:53,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 35 states and 68 transitions. [2018-09-28 11:47:53,046 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 68 transitions. [2018-09-28 11:47:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-09-28 11:47:53,047 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:53,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:54,406 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:47:58,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:47:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 36 states and 70 transitions. [2018-09-28 11:47:58,535 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 70 transitions. [2018-09-28 11:47:58,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-09-28 11:47:58,538 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:47:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:47:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:03,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:03,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 37 states and 72 transitions. [2018-09-28 11:48:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 72 transitions. [2018-09-28 11:48:03,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-09-28 11:48:03,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:03,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:04,663 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:09,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:09,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 38 states and 74 transitions. [2018-09-28 11:48:09,595 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 74 transitions. [2018-09-28 11:48:09,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-28 11:48:09,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:15,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 39 states and 76 transitions. [2018-09-28 11:48:15,985 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 76 transitions. [2018-09-28 11:48:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-28 11:48:15,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:16,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:17,016 INFO L134 CoverageAnalysis]: Checked inductivity of 561 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 40 states and 78 transitions. [2018-09-28 11:48:22,770 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 78 transitions. [2018-09-28 11:48:22,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-09-28 11:48:22,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:22,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:29,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:29,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 41 states and 80 transitions. [2018-09-28 11:48:29,953 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 80 transitions. [2018-09-28 11:48:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-28 11:48:29,953 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:31,000 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:37,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 42 states and 82 transitions. [2018-09-28 11:48:37,783 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 82 transitions. [2018-09-28 11:48:37,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-28 11:48:37,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:39,043 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 666 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:46,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 43 states and 84 transitions. [2018-09-28 11:48:46,335 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 84 transitions. [2018-09-28 11:48:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-28 11:48:46,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 703 backedges. 0 proven. 703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:48:55,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:48:55,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 86 transitions. [2018-09-28 11:48:55,375 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 86 transitions. [2018-09-28 11:48:55,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-28 11:48:55,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:48:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:48:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 741 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:49:05,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:49:05,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 45 states and 88 transitions. [2018-09-28 11:49:05,498 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 88 transitions. [2018-09-28 11:49:05,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-09-28 11:49:05,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:49:05,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:49:06,822 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:49:16,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:49:16,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 46 states and 90 transitions. [2018-09-28 11:49:16,347 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 90 transitions. [2018-09-28 11:49:16,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-28 11:49:16,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:49:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:49:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 820 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:49:27,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:49:27,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 47 states and 92 transitions. [2018-09-28 11:49:27,962 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 92 transitions. [2018-09-28 11:49:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-28 11:49:27,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:49:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:49:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:49:40,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:49:40,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 48 states and 94 transitions. [2018-09-28 11:49:40,417 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 94 transitions. [2018-09-28 11:49:40,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-28 11:49:40,417 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:49:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:49:42,621 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 903 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:49:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:49:54,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 49 states and 96 transitions. [2018-09-28 11:49:54,104 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 96 transitions. [2018-09-28 11:49:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-28 11:49:54,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:49:54,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:49:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 946 backedges. 0 proven. 946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:08,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 50 states and 98 transitions. [2018-09-28 11:50:08,016 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 98 transitions. [2018-09-28 11:50:08,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-28 11:50:08,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:10,071 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:23,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 51 states and 100 transitions. [2018-09-28 11:50:23,189 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 100 transitions. [2018-09-28 11:50:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-28 11:50:23,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:23,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1035 backedges. 0 proven. 1035 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:39,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:39,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 52 states and 102 transitions. [2018-09-28 11:50:39,235 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 102 transitions. [2018-09-28 11:50:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-09-28 11:50:39,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:50:56,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:50:56,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 53 states and 104 transitions. [2018-09-28 11:50:56,292 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 104 transitions. [2018-09-28 11:50:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-28 11:50:56,293 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:50:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:50:58,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 0 proven. 1128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-28 11:51:14,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-09-28 11:51:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 54 states and 106 transitions. [2018-09-28 11:51:14,753 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 106 transitions. [2018-09-28 11:51:14,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-28 11:51:14,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2018-09-28 11:51:14,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-28 11:51:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown